NPI Portal NPI Lookup & Verification

Developmental Therapist in Waltham, MA

27 active Developmental Therapist providers practice in Waltham, Massachusetts according to the latest NPPES snapshot. Profiles include the NPI number, taxonomy code, license state, and practice address.

No indexed providers to list yet — try the NPI search for MA.

Frequently asked questions

How many Developmental Therapist providers are in Waltham, MA?
The latest NPPES snapshot lists 27 active Developmental Therapist providers with a practice address in Waltham, Massachusetts.
How do I check a Developmental Therapist provider's NPI in Waltham?
Open a profile below to see the NPI number, taxonomy code, and practice address, then verify against the official NPPES registry — every profile links directly to the CMS record.

Source: CMS NPPES (public data). Snapshot 2026-07-10.